I often get unsure between the two. If someone says: I read the poem and I like it or liked it? should the reply be: I am glad you like it. Or I am glad you liked it. The question is 1) Does the past in this instance means they do not like it anymore? 2) Should I keep the present rather then past? Or 3) is it to do with verbs because certain verbs express present and past at the same time?